hcl.tab.c

深入理解计算机系统 的lab

/*  A Bison parser, made from hcl.y
    by GNU Bison version 1.28  */

#define YYBISON 1  /* Identify Bison output.  */

#define	QUOTE	257
#define	BOOLARG	258
#define	BOOL	259
#define	INTARG	260
#define	INT	261
#define	QSTRING	262
#define	VAR	263
#define	NUM	264
#define	ASSIGN	265
#define	SEMI	266
#define	COLON	267
#define	COMMA	268
#define	LPAREN	269
#define	RPAREN	270
#define	LBRACE	271
#define	RBRACE	272
#define	LBRACK	273
#define	RBRACK	274
#define	AND	275
#define	OR	276
#define	NOT	277
#define	COMP	278
#define	IN	279

#line 1 "hcl.y"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "node.h"
#define YYSTYPE node_ptr

/* Current line number.  Maintained by lex */
int lineno = 1;
#define ERRLIM 5
int errcnt = 0;

FILE *outfile;

int yyparse(void);
int yylex(void);

void yyerror(const char *str)
{
  fprintf(stderr, "Error, near line %d: %s\n", lineno, str);
  if (++errcnt > ERRLIM) {
      fprintf(stderr, "Too many errors, aborting\n");
      exit(1);
  }
}

static char errmsg[1024];
void yyserror(const char *str, char *other)
{
    sprintf(errmsg, str, other);
    yyerror(errmsg);
}

int yywrap()
{
  return 1;
}
  
int main(int argc, char **argv)
{
    init_node(argc, argv);
    outfile = stdout;
    yyparse();
    finish_node(0);
    return errcnt != 0;
}

#ifndef YYSTYPE
#define YYSTYPE int
#endif
#include <stdio.h>

#ifndef __cplusplus
#ifndef __STDC__
#define const
#endif
#endif



#define	YYFINAL		49
#define	YYFLAG		-32768
#define	YYNTBASE	26

#define YYTRANSLATE(x) ((unsigned)(x) <= 279 ? yytranslate[x] : 31)

static const char yytranslate[] = {     0,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     1,     3,     4,     5,     6,
     7,     8,     9,    10,    11,    12,    13,    14,    15,    16,
    17,    18,    19,    20,    21,    22,    23,    24,    25
};

#if YYDEBUG != 0
static const short yyprhs[] = {     0,
     0,     1,     4,     7,    11,    15,    21,    27,    29,    31,
    35,    38,    42,    46,    50,    56,    60,    62,    66,    67
};

static const short yyrhs[] = {    -1,
    26,    27,     0,     3,     8,     0,     4,     9,     8,     0,
     6,     9,     8,     0,     5,     9,    11,    28,    12,     0,
     7,     9,    11,    28,    12,     0,     9,     0,    10,     0,
    15,    28,    16,     0,    23,    28,     0,    28,    21,    28,
     0,    28,    22,    28,     0,    28,    24,    28,     0,    28,
    25,    17,    29,    18,     0,    19,    30,    20,     0,    28,
     0,    29,    14,    28,     0,     0,    30,    28,    13,    28,
    12,     0
};

#endif

#if YYDEBUG != 0
static const short yyrline[] = { 0,
    63,    64,    67,    69,    70,    71,    72,    75,    77,    78,
    79,    80,    81,    82,    83,    84,    87,    89,    91,    93
};
#endif


#if YYDEBUG != 0 || defined (YYERROR_VERBOSE)

static const char * const yytname[] = {   "$","error","$undefined.","QUOTE",
"BOOLARG","BOOL","INTARG","INT","QSTRING","VAR","NUM","ASSIGN","SEMI","COLON",
"COMMA","LPAREN","RPAREN","LBRACE","RBRACE","LBRACK","RBRACK","AND","OR","NOT",
"COMP","IN","statements","statement","expr","exprlist","caselist", NULL
};
#endif

static const short yyr1[] = {     0,
    26,    26,    27,    27,    27,    27,    27,    28,    28,    28,
    28,    28,    28,    28,    28,    28,    29,    29,    30,    30
};

static const short yyr2[] = {     0,
     0,     2,     2,     3,     3,     5,     5,     1,     1,     3,
     2,     3,     3,     3,     5,     3,     1,     3,     0,     5
};

static const short yydefact[] = {     1,
     0,     0,     0,     0,     0,     0,     2,     3,     0,     0,
     0,     0,     4,     0,     5,     0,     8,     9,     0,    19,
     0,     0,     0,     0,     0,    11,     6,     0,     0,     0,
     0,     7,    10,    16,     0,    12,    13,    14,     0,     0,
    17,     0,     0,     0,    15,    20,    18,     0,     0
};

static const short yydefgoto[] = {     1,
     7,    22,    42,    25
};

static const short yypact[] = {-32768,
    66,    -7,    -3,     8,    18,    23,-32768,-32768,    -4,    22,
    26,    32,-32768,    21,-32768,    21,-32768,-32768,    21,-32768,
    21,    25,    30,   -14,     6,    -5,-32768,    21,    21,    21,
    24,-32768,-32768,-32768,    43,    -5,    14,    20,    21,    21,
    53,     4,    36,    21,-32768,-32768,    53,    59,-32768
};

static const short yypgoto[] = {-32768,
-32768,   -16,-32768,-32768
};


#define	YYLAST		78


static const short yytable[] = {    23,
     8,    33,    24,    13,    26,     9,    28,    29,    35,    30,
    31,    36,    37,    38,    17,    18,    10,    44,    30,    31,
    19,    45,    41,    43,    20,    34,    11,    47,    21,    17,
    18,    12,    14,    15,    28,    19,    27,    30,    31,    20,
    39,    32,    16,    21,    31,    28,    29,    46,    30,    31,
    28,    29,     0,    30,    31,    40,    28,    29,    49,    30,
    31,     0,     0,    28,    29,    48,    30,    31,     2,     3,
     4,     5,     6,    28,    29,     0,    30,    31
};

static const short yycheck[] = {    16,
     8,    16,    19,     8,    21,     9,    21,    22,    25,    24,
    25,    28,    29,    30,     9,    10,     9,    14,    24,    25,
    15,    18,    39,    40,    19,    20,     9,    44,    23,     9,
    10,     9,    11,     8,    21,    15,    12,    24,    25,    19,
    17,    12,    11,    23,    25,    21,    22,    12,    24,    25,
    21,    22,    -1,    24,    25,    13,    21,    22,     0,    24,
    25,    -1,    -1,    21,    22,     0,    24,    25,     3,     4,
     5,     6,     7,    21,    22,    -1,    24,    25
};
/* -*-C-*-  Note some compilers choke on comments on `#line' lines.  */
#line 3 "/usr/lib/bison.simple"
/* This file comes from bison-1.28.  */

/* Skeleton output parser for bison,
   Copyright (C) 1984, 1989, 1990 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

/* As a special exception, when this file is copied by Bison into a
   Bison output file, you may use that output file without restriction.
   This special exception was added by the Free Software Foundation
   in version 1.24 of Bison.  */

/* This is the parser code that is written into each bison parser
  when the %semantic_parser declaration is not specified in the grammar.
  It was written by Richard Stallman by simplifying the hairy parser
  used when %semantic_parser is specified.  */

#ifndef YYSTACK_USE_ALLOCA
#ifdef alloca
#define YYSTACK_USE_ALLOCA
#else /* alloca not defined */
#ifdef __GNUC__
#define YYSTACK_USE_ALLOCA
#define alloca __builtin_alloca
#else /* not GNU C.  */
#if (!defined (__STDC__) && defined (sparc)) || defined (__sparc__) || defined (__sparc) || defined (__sgi) || (defined (__sun) && defined (__i386))
#define YYSTACK_USE_ALLOCA
#include <alloca.h>
#else /* not sparc */
/* We think this test detects Watcom and Microsoft C.  */
/* This used to test MSDOS, but that is a bad idea
   since that symbol is in the user namespace.  */
#if (defined (_MSDOS) || defined (_MSDOS_)) && !defined (__TURBOC__)
#if 0 /* No need for malloc.h, which pollutes the namespace;
	 instead, just don't use alloca.  */
#include <malloc.h>
#endif
#else /* not MSDOS, or __TURBOC__ */
#if defined(_AIX)
/* I don't know what this was needed for, but it pollutes the namespace.
   So I turned it off.   rms, 2 May 1997.  */
/* #include <malloc.h>  */
 #pragma alloca
#define YYSTACK_USE_ALLOCA
#else /* not MSDOS, or __TURBOC__, or _AIX */
#if 0
#ifdef __hpux /* [e-mail] says this works for HPUX 9.05 and up,
		 and on HPUX 10.  Eventually we can turn this on.  */
#define YYSTACK_USE_ALLOCA
#define alloca __builtin_alloca
#endif /* __hpux */
#endif
#endif /* not _AIX */
#endif /* not MSDOS, or __TURBOC__ */
#endif /* not sparc */
#endif /* not GNU C */
#endif /* alloca not defined */
#endif /* YYSTACK_USE_ALLOCA not defined */

#ifdef YYSTACK_USE_ALLOCA
#define YYSTACK_ALLOC alloca
#else
#define YYSTACK_ALLOC malloc
#endif

/* Note: there must be only one dollar sign in this file.
   It is replaced by the list of actions, each action
   as one case of the switch.  */

#define yyerrok		(yyerrstatus = 0)
#define yyclearin	(yychar = YYEMPTY)
#define YYEMPTY		-2
#define YYEOF		0
#define YYACCEPT	goto yyacceptlab
#define YYABORT 	goto yyabortlab
#define YYERROR		goto yyerrlab1
/* Like YYERROR except do call yyerror.
   This remains here temporarily to ease the
   transition to the new meaning of YYERROR, for GCC.
   Once GCC version 2 has supplanted version 1, this can go.  */
#define YYFAIL		goto yyerrlab
#define YYRECOVERING()  (!!yyerrstatus)
#define YYBACKUP(token, value) \
do								\
  if (yychar == YYEMPTY && yylen == 1)				\
    { yychar = (token), yylval = (value);			\
      yychar1 = YYTRANSLATE (yychar);				\
      YYPOPSTACK;						\
      goto yybackup;						\
    }								\
  else								\
    { yyerror ("syntax error: cannot back up"); YYERROR; }	\
while (0)

#define YYTERROR	1
#define YYERRCODE	256

#ifndef YYPURE
#define YYLEX		yylex()
#endif

#ifdef YYPURE
#ifdef YYLSP_NEEDED
#ifdef YYLEX_PARAM
#define YYLEX		yylex(&yylval, &yylloc, YYLEX_PARAM)
#else
#define YYLEX		yylex(&yylval, &yylloc)
#endif
#else /* not YYLSP_NEEDED */
#ifdef YYLEX_PARAM
#define YYLEX		yylex(&yylval, YYLEX_PARAM)
#else
#define YYLEX		yylex(&yylval)
#endif
#endif /* not YYLSP_NEEDED */
#endif

/* If nonreentrant, generate the variables here */

#ifndef YYPURE

int	yychar;			/*  the lookahead symbol		*/
YYSTYPE	yylval;			/*  the semantic value of the		*/
				/*  lookahead symbol			*/

#ifdef YYLSP_NEEDED
YYLTYPE yylloc;			/*  location data for the lookahead	*/
				/*  symbol				*/
#endif

int yynerrs;			/*  number of parse errors so far       */
#endif  /* not YYPURE */

#if YYDEBUG != 0
int yydebug;			/*  nonzero means print parse trace	*/
/* Since this is uninitialized, it does not stop multiple parsers
   from coexisting.  */
#endif

/*  YYINITDEPTH indicates the initial size of the parser's stacks	*/

#ifndef	YYINITDEPTH
#define YYINITDEPTH 200
#endif

/*  YYMAXDEPTH is the maximum size the stacks can grow to
    (effective only if the built-in stack extension method is used).  */

#if YYMAXDEPTH == 0
#undef YYMAXDEPTH
#endif

#ifndef YYMAXDEPTH
#define YYMAXDEPTH 10000
#endif

/* Define __yy_memcpy.  Note that the size argument
   should be passed with type unsigned int, because that is what the non-GCC
   definitions require.  With GCC, __builtin_memcpy takes an arg
   of type size_t, but it can handle unsigned int.  */

#if __GNUC__ > 1		/* GNU C and GNU C++ define this.  */
#define __yy_memcpy(TO,FROM,COUNT)	__builtin_memcpy(TO,FROM,COUNT)
#else				/* not GNU C or C++ */
#ifndef __cplusplus

/* This is the most reliable way to avoid incompatibilities
   in available built-in functions on various systems.  */
static void
__yy_memcpy (to, from, count)
     char *to;
     char *from;
     unsigned int count;
{
  register char *f = from;
  register char *t = to;
  register int i = count;

  while (i-- > 0)
    *t++ = *f++;
}

#else /* __cplusplus */

/* This is the most reliable way to avoid incompatibilities
   in available built-in functions on various systems.  */
static void
__yy_memcpy (char *to, char *from, unsigned int count)
{
  register char *t = to;
  register char *f = from;
  register int i = count;

  while (i-- > 0)
    *t++ = *f++;
}

#endif
#endif

#line 217 "/usr/lib/bison.simple"

/* The user can define YYPARSE_PARAM as the name of an argument to be passed
   into yyparse.  The argument should have type void *.
   It should actually point to an object.
   Grammar actions can access the variable by casting it
   to the proper pointer type.  */

#ifdef YYPARSE_PARAM
#ifdef __cplusplus
#define YYPARSE_PARAM_ARG void *YYPARSE_PARAM
#define YYPARSE_PARAM_DECL
#else /* not __cplusplus */
#define YYPARSE_PARAM_ARG YYPARSE_PARAM
#define YYPARSE_PARAM_DECL void *YYPARSE_PARAM;
#endif /* not __cplusplus */
#else /* not YYPARSE_PARAM */
#define YYPARSE_PARAM_ARG
#define YYPARSE_PARAM_DECL
#endif /* not YYPARSE_PARAM */

/* Prevent warning if -Wstrict-prototypes.  */
#ifdef __GNUC__
#ifdef YYPARSE_PARAM
int yyparse (void *);
#else
int yyparse (void);
#endif
#endif

int
yyparse(YYPARSE_PARAM_ARG)
     YYPARSE_PARAM_DECL
{
  register int yystate;
  register int yyn;
  register short *yyssp;
  register YYSTYPE *yyvsp;
  int yyerrstatus;	/*  number of tokens to shift before error messages enabled */
  int yychar1 = 0;		/*  lookahead token as an internal (translated) token number */

  short	yyssa[YYINITDEPTH];	/*  the state stack			*/
  YYSTYPE yyvsa[YYINITDEPTH];	/*  the semantic value stack		*/

  short *yyss = yyssa;		/*  refer to the stacks thru separate pointers */
  YYSTYPE *yyvs = yyvsa;	/*  to allow yyoverflow to reallocate them elsewhere */

#ifdef YYLSP_NEEDED
  YYLTYPE yylsa[YYINITDEPTH];	/*  the location stack			*/
  YYLTYPE *yyls = yylsa;
  YYLTYPE *yylsp;

#define YYPOPSTACK   (yyvsp--, yyssp--, yylsp--)
#else
#define YYPOPSTACK   (yyvsp--, yyssp--)
#endif

  int yystacksize = YYINITDEPTH;
  int yyfree_stacks = 0;

#ifdef YYPURE
  int yychar;
  YYSTYPE yylval;
  int yynerrs;
#ifdef YYLSP_NEEDED
  YYLTYPE yylloc;
#endif
#endif

  YYSTYPE yyval;		/*  the variable used to return		*/
				/*  semantic values from the action	*/
				/*  routines				*/

  int yylen;

#if YYDEBUG != 0
  if (yydebug)
    fprintf(stderr, "Starting parse\n");
#endif

  yystate = 0;
  yyerrstatus = 0;
  yynerrs = 0;
  yychar = YYEMPTY;		/* Cause a token to be read.  */

  /* Initialize stack pointers.
     Waste one element of value and location stack
     so that they stay on the same level as the state stack.
     The wasted elements are never initialized.  */

  yyssp = yyss - 1;
  yyvsp = yyvs;
#ifdef YYLSP_NEEDED